Influence of implant abutment material on the color of different ceramic crown systems
| Autor: | Ersan Çelik, Burak Yilmaz, Doğu Ömür Dede, Arzu Armaganci, Gözlem Ceylan, Soner Çankaya |
|---|---|
| Přispěvatelé: | Ondokuz Mayıs Üniversitesi |
| Rok vydání: | 2016 |
| Předmět: |
Ceramics
Materials science Composite number Abutment Color Dental Cements Dentistry chemistry.chemical_element 02 engineering and technology Dental Materials 03 medical and health sciences 0302 clinical medicine Dental porcelain Dental cement Materials Testing Dentin medicine Humans Cubic zirconia Ceramic Composite material Crowns business.industry 030206 dentistry 021001 nanoscience & nanotechnology Dental Porcelain medicine.anatomical_structure chemistry visual_art visual_art.visual_art_medium Zirconium Oral Surgery 0210 nano-technology business Titanium |
| Zdroj: | The Journal of Prosthetic Dentistry. 116:764-769 |
| ISSN: | 0022-3913 |
| DOI: | 10.1016/j.prosdent.2016.04.004 |
| Popis: | Yilmaz, Burak/0000-0002-7101-363X; dede, dogu omur/0000-0003-1021-5702 WOS: 000387302400010 PubMed: 27402418 Statement of problem. Ceramics are widely used for anterior restorations; however, clinical color reproduction still constitutes a challenge particularly when the ceramic crowns are used on titanium implant abutments. Purpose. The purpose of this in vitro study was to investigate the effect of implant abutment material on the color of different ceramic material systems. Material and methods. Forty disks (11x1.5 mm, shade A2) were fabricated from medium-opacity (mo) and high-translucency (ht) lithium disilicate (IPS e.max) blocks, an aluminous ceramic (VITA In-Ceram Alumina), and a zirconia (Zirkonzahn) ceramic system. Disks were fabricated to represent 3 different implant abutments (zirconia, gold-palladium, and titanium) and dentin (composite resin, A2 shade) as background (11x2 mm). Disk-shaped composite resin specimens in A2 shade were fabricated to represent the cement layer. The color measurements of ceramic specimens were made on composite resin abutment materials using a spectrophotometer. CIELab color coordinates were recorded, and the color coordinates measured on composite resin background served as the control group. Color differences (Delta E-00) between the control and test groups were calculated. The data were analyzed with 2-way analysis of variance (ANOVA) and compared with the Tukey HSD test (alpha=.05). Results. The ceramics system, abutment material, and their interaction were significant for Delta E-00 values (P2.25) were observed for lithium disilicate ceramics on titanium abutments (2.46-2.50). The Delta E-00 values of lithium disilicate ceramics for gold- palladium and titanium abutments were significantly higher than for other groups (P 2.25) of an implant-supported lithium disilicate ceramic restoration may be clinically unacceptable if it is fabricated over a titanium abutment. Zirconia may be a more suitable abutment material for implant-supported ceramic restorations. |
| Databáze: | OpenAIRE |
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